4781951 has 2 divisors, whose sum is σ = 4781952. Its totient is φ = 4781950.

The previous prime is 4781941. The next prime is 4781963. The reversal of 4781951 is 1591874.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4781951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4781911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2390975 + 2390976.

It is an arithmetic number, because the mean of its divisors is an integer number (2390976).

Almost surely, 2^4781951 is an apocalyptic number.

4781951 is a deficient number, since it is larger than the sum of its proper divisors (1).

4781951 is an equidigital number, since it uses as much as digits as its factorization.

4781951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 35.

The square root of 4781951 is about 2186.7672487030. The cubic root of 4781951 is about 168.4748353266.

The spelling of 4781951 in words is "four million, seven hundred eighty-one thousand, nine hundred fifty-one".